The USA Disaster Situation Report
The Daily USA Disaster Situation Report
For April 6, 2001
Christopher Effgen, Editor, host{at}disastercenter.com
------------------------------------------------------------
IN THIS ISSUE
------------------------------------------------------------
=> USA Daily Temperature Extremes
=> Special Notes
=> Current Active National Weather Service Warnings:
=> Severe Weather Probability Forecast
=> Precipitation Forecast, Excessive Rainfall, Heavy Snow And/Or Significant
Icing Forecast
=> USA Flood Report
=> USA Fire Report and Forecast
=> USA Earthquake Report
=> Yesterday's USA Severe Weather Reports
=> Guest Column--- The System that will replace the SitRep
=> Sponsored by The Rothstein Catalog On Disaster Recovery
**** ARTICLES ****
=> Article Volcano Watch - April 5, 2001 -- Kilauea's all cracked up, and
that's not funny
=> Classified Ads
=> Links Area
=> How to Be Featured as our Guest Columnist
------------------------------------------------------------
Sponsored by the The Rothstein Catalog On Disaster Recovery
http://www.disastercenter.com/Rothstein/
------------------------------------------------------------
=> Subscribe/Unsubscribe information
The Daily USA Disaster Situation Report
For April 6, 2001
Christopher Effgen, Editor, host{at}disastercenter.com
------------------------------------------------------------
IN THIS ISSUE
------------------------------------------------------------
=> USA Daily Temperature Extremes
National Temperature Extremes
High Thu...96 At Presidio TX
Low Fri...12 At Greenville ME
=> Special Notes
Triple Severe weather threat today!
=> Current Active National Weather Service Warnings:
Active Warnings are no longer being provided to see current warning please
go to:
U.S. National Weather Service's Active Warning's page
http://iwin.nws.noaa.gov/iwin/graphicsversion/bigmain.html
=> Severe Weather Probability Forecast
The forecast probability of an event is by the stated percentage or greater
for the event, within 25 miles of any point for the area described.
Tornado Risk - Severe
The 10% probability area for an F2 or greater Tornado covers the extreme
northwest area of the
Texas panhandle, the northwest 1/3 of Oklahoma except the western 1/2 of
Oklahoma's panhandle,
Kansas except the far eastern area, and central south Nebraska.
There is a 2% probability of a tornado over southwest central through
central north and north
northeast Texas, Oklahoma, Kansas, east northeast Colorado, extreme
southeast Wyoming, south
southwest and the south southeast 1/4 of Nebraska, central and southern
Iowa, Illinois except the
extreme north northeast and southern areas, Indiana except the far north
northeast area and far
southern areas, Ohio except the far northern area, extreme northwest West
Virginia, Missouri except
the southeast corner, and far northwest Arkansas.
The 5% probability area covers southwest central through central north
Texas, Oklahoma except the
extreme western and southeastern areas, Kansas, south southwest and the
south southeast 1/4 of
Nebraska, and east northeast Colorado. Also over central through central
east Indiana, and the
southeast 1/3 of Ohio.
The 15% probability area covers extreme central north and the east side of
the Texas panhandle, the
northwest 1/3 of Oklahoma except the western 1/2 of Oklahoma's panhandle,
Kansas except the far
eastern area, and central south Nebraska.
The 25% probability area covers west northwest Oklahoma excepting the
panhandle, and the
western 1/2 of Kansas except the far western area.
Hail Risk - Severe
The 10% probability area for hail 2 inch or larger covers extreme central
south Nebraska, the
western 2/3 of Kansas except the far western area, the northwest 1/4 of
Oklahoma except the
western 7/8 of the panhandle.
There is a 5% probability of hail 3/4 inch or larger over southwest central
through central north and
north northeast Texas, extreme east north east New Mexico, Oklahoma, Kansas,
the eastern 1/4 of
Colorado, extreme southeast Wyoming, Nebraska, the south southeast 1/2 of
South Dakota,
southern Minnesota, the southwest 1/2 of Wisconsin, south southwest
Michigan, Ohio, far western
Pennsylvania, northwest West Virginia, extreme northwest Kentucky, Indian
except the far southern
area, Illinois except the far southern area, Missouri except the southeast
area, and northwest
Arkansas.
The 15% probability area covers southwest central through central north and
north northeast Texas,
Oklahoma, Kansas, the eastern 1/8 of Colorado, Nebraska except the far
northwest area, south
southeast South Dakota, far southern Minnesota, southern Wisconsin, far
south southwest Michigan,
Ohio except the far east northeast area, extreme northwest West Virginia,
extreme northwest
Kentucky, Indian except the far southern area, Illinois except the far
southern area, Missouri except
the southeast area, and northwest Arkansas.
The 25% probability area covers the far eastern part of Texas's panhandle,
the northwest 1/3 of
Oklahoma except the western 2/3 of the panhandle, Kansas except the far west
southwest and the
southeast areas, Nebraska except the north northeast 1/3, extreme southwest
South Dakota, the
southwest 1/2 of Iowa, and far north northwest Missouri.
The 35% probability area covers extreme central south Nebraska, the western
2/3 of Kansas except
the far western area, the northwest 1/4 of Oklahoma except the western 7/8
of the panhandle.
Wind Risk - Very Severe
The 10% probability area covers extreme central north Texas, the northwest
1/2 of Oklahoma
except the panhandle, Kansas except the far eastern and far western areas,
and extreme central
south Nebraska.
There is a 5% probability of winds in excess of 50 knots over southwest
central through central
north and north northeast Texas, extreme east north east New Mexico,
Oklahoma, Kansas, the east
northeast Colorado, far southeast Wyoming, Nebraska except the north central
and northern areas,
southern Wisconsin, extreme south southwest Michigan, Ohio except the
northwest area, far western
extreme central west Pennsylvania, west northwest West Virginia, northwest
Kentucky, Indian
except the extreme southern area, Illinois, Missouri except the extreme
southeast area, and the
northwest 1/2 of Arkansas.
The 15% probability area covers southwest central through central north and
north northeast Texas,
Oklahoma except the western 1/2 of the panhandle, Kansas except the extreme
southwest area, far
northwest Colorado, extreme southeast Wyoming, the south southeast and the
south southwest 1/4
of Nebraska, the southwest 1/2 of Ohio, extreme northwest West Virginia,
extreme northwest
Kentucky, Indian except the far central south area, Illinois except the
extreme southeastern area,
Missouri except the extreme southeast area, and northwest 1/3 of Arkansas.
The 25% probability area covers north central through central north and
north northeast Texas,
Oklahoma except the panhandle and the extreme southeast area, Kansas except
the far western
area, south southeast Nebraska, the southern 1/3 of Iowa, central through
central west Illinois,
Missouri except the southeast area, and far northwest Arkansas.
The 35% probability area covers extreme central north Texas, Oklahoma except
the panhandle and
the southeast area, Kansas except the western and extreme southeastern
areas, far south southeast
Nebraska, far south southeast Iowa, the northwest 1/2 of Missouri, and
extreme northwest
Arkansas
The 45% probability area covers north central through central north
Oklahoma, the eastern 1/2 of
Kansas except the extreme southeastern area, far south southeast Nebraska,
extreme south
southeast Iowa, and northwest Missouri.
Tomorrow's Risk -
There is a 5% probability of any severe weather tomorrow over east central
through far northeast
Texas, extreme southeastern Oklahoma, Arkansas except the far southeastern
and far northwestern
areas, southeast Missouri, north northwest Tennessee, Kentucky except the
southeast area,
southeast Illinois, the southeast 1/2 and far eastern Indiana, northwest
West Virginia, far west
northwest Pennsylvania, Ohio, Michigan, and the northeast 3/4 of Wisconsin.
The 15% probability area covers central northeast through far northeast
Texas, extreme southeastern
Oklahoma, Arkansas except the southeast and northwest areas, far southeast
Missouri, far north
northwest Tennessee, the north northwest 1/2 of Kentucky, far southeast
Illinois, southeast Indiana.
Also extreme west northwest Pennsylvania, northwest Ohio, Michigan except
the far southwest area,
and the northeast 1/2 of Wisconsin.
The 25% probability area covers central through northeast Arkansas, far
southeast Missouri,
extreme northwest Tennessee, extreme south Illinois, and far western
Kentucky.
Day Three's Risk -
The three weather forecast has not been updated.
=> Precipitation Forecast, Excessive Rainfall, Heavy Snow And/Or
Significant
Icing Forecast
Precipitation Forecast
The 24 hour precipitation forecast is calling for 2 inches of precipitation
over a small area of far
northeast South Dakota.
Over an inch of rainfall is forecast over west central California. Also
over the southeast 2/3 of South
Dakota, far southeast North Dakota, the southwest 1/3 of Minnesota, eastern
Nebraska except the
far southeastern area, and the northwest 1/4 of Iowa.
The 24 - 48 hour precipitation forecast is calling for over 1 inch of
precipitation over northern
Minnesota except the western area.
Excessive Rainfall Forecast - Today
Rainfall may exceed flash flood values over north northeast Nebraska, the
eastern 1/2 of South
Dakota, south southeast North Dakota, central west through southwest
Minnesota and far northwet
Iowa.
USA heavy snow and/or significant icing
>From noon to midnight today EST the probability of snow exceeding warning
thresholds is less than
20%
The probability of 1/4 inch or greater of ice accumulation is less than 20%
>From midnight to noon tomorrow EST the probability of 12 inches or greater
of snow is low over
west central California.
The probability of 1/4 inch or greater of ice accumulation is less than 20%
Current USA Snow and Ice Cover
http://www.rap.ucar.edu/weather/surface/us_NESDISsnow.gif
=> USA Flood Report
NATIONAL FLOOD SUMMARY
HYDROLOGIC INFORMATION CENTER
09:20 A.M. EDT, FRIDAY, APRIL 6, 2001
FLOOD SUMMARY
HEAVY RAIN AND FLOODING FROM THE SOUTH TO THE NORTHERN PLAINS.
HEAVY RAIN SINCE MONDAY HAS CAUSED RIVERS ACROSS THE SOUTH,
INCLUDING
PORTIONS OF GEORGIA, NORTH CAROLINA, SOUTH CAROLINA AND VIRGINIA,
TO
RISE SIGNIFICANTLY WITH MINOR TO MODERATE FLOODING ON SOME RIVERS.
RIVERS ACROSS MISSOURI WHICH ROSE IN RESPONSE TO RECENT HEAVY RAIN
ARE CONTINUING TO SLOWLY FALLING. RIVERS ACROSS PARTS OF THE
NORTHERN PLAINS HAVE MINOR TO MODERATE FLOODING FROM SNOW MELT
AND
WARMER TEMPERATURES.MODERATE FLOODING IS OCCURRING ALONG
PORTIONS OF
THE RED RIVER. EXPECTED RAINFALL COULD CAUSE FURTHER RISES,
ESPECIALLY ALONG SOUTHERN PORTIONS OF THE RIVER. MAJOR FLOODING IS
ANTICIPATED ALONG PORTIONS OF THE JAMES AND WILD RICE RIVERS.
EXPECTED RAINFALL COULD CAUSE FURTHER RISES ON THESE RIVERS.
FLASH FLOODING:
FLOOD/FLASH FLOOD AND/OR URBAN AND SMALL STREAM FLOOD ADVISORIES
WERE
ISSUED DURING THE PAST 24 HOURS FOR LOCATIONS INCLUDING:
ARIZONA: GILA, MARICOPA AND PINAL COUNTIES
ILLINOIS: HENDERSON COUNTY
INDIANA: ALLEN, DE KALB, KOSCIUSKO, NOBLE AND WHITLEY
IOWA: DES MOINES, HENRY AND JEFFERSON COUNTIES
MISSOURI: ADAIR PUTNAM AND SULLIVAN COUNTIES
VERY HEAVY RAIN CAUSED DANGEROUS FLASH FLOODING AND
RESULTED IN SEVERAL COUNTY ROADS TO BE CLOSED IN
ADAIR COUNTY.
PUERTO RICO: MUNICIPALITIES OF ANDJANTAS, BARRANQUITAS, COUMO,
JAYUYA, OROCORVIS, MARICAO, VREQIES AND VILLALBA
IN THE CENTRAL INTERIOR OF THE ISLAND.
RIVER FLOODING:
RIVERS AND STREAMS WITH LOCATIONS EITHER ABOVE FLOOD STAGE OR
EXPECTED TO RISE ABOVE FLOOD STAGE INCLUDE:
ALABAMA: THE CHOCTAWHATCHEE, BLACK WARRIOR, LOWER
TALLAPOOSA, ALABAMA, TOMBIGBEE, CAHABA, LOCUST FORK AND
CHATTAHOOCHEE RIVERS
ARKANSAS: THE OUACHITA AND CACHE RIVERS
FLORIDA: THE APALACHICOLA AND CHOCTAWHATCHEE RIVERS
GEORGIA: THE OCMULGEE, CHATTAHOOCHEE, WITHLACOOCHEE,
ALTAMAHA, OGEECHEE AND OHOOPEE RIVERS
ILLINOIS: THE BIG MUDDY RIVER
IOWA: THE IOWA, CEDAR, LITTLE SIOUX, BOG SIOUX, SHELL ROCK,
WINNEBAGO, WEST FORK CEDAR, DES MOINES AND EAST AND WEST
FORK DES MOINES RIVERS
LOUISIANA: THE CALCASIEU, OUACHITA, ATCHAFALAYA AND BOEUF
RIVERS; BAYOU DORCHEAT, BAYOU BODCAU AND PEARL RIVERS
MASSACHUSETTS: THE CHARLES, CONCORD AND SUDBURY RIVERS
MINNESOTA: THE RED, TWO RIVERS, MINNESOTA, REDWOOD,
COTTONWOOD, SOUTH BRANCH BUFFALO, BUFFALO, WILD RICE AND RED
LAKE RIVERS; TURTLE CREEK
MISSISSIPPI: THE BUTTAHATCHIE, CHICKASAWHAY, YOCKANOOKANY,
PEARL, UPPER BIG BLACK, LITTLE TALLAHATCHIE, TOMBIGBEE AND
PEARL RIVERS; TUSCOLAMETA CREEK
MISSOURI: THE SOUTH GRAND. BLACKWATER, MOREAU AND LAMINE
RIVERS; BIG CREEK
NORTH CAROLINA: THE TAR, NEUSE AND CAPE FEAR RIVERS
NORTH DAKOTA: THE RED, SHEYENNE, MAPLE, LOWER SOURIS AND
JAMES RIVERS
SOUTH CAROLINA: THE GREAT PEE DEE RIVER
SOUTH DAKOTA: THE BIG SIOUX, JAMES AND VERMILLION RIVERS
TEXAS: THE TRINITY, SABINE, NECHES AND SULPHUR RIVERS
VIRGINIA: THE NOTTOWAY RIVER
=> USA Fire Report and Forecast
Not updated
=> USA Earthquake Report
UNITED STATES GEOLOGICAL SURVEY
NATIONAL EARTHQUAKE INFORMATION CENTER
GOLDEN, COLORADO
LISTS OF U.S. EARTHQUAKES IN THE LAST 30 HOURS
Prepared by USGS/NEIC 2001 APR 06 at 00:15 UTC
EARTHQUAKES IN NORTHWESTERN UNITED STATES
(40.3 TO 50.0 N, 102.0 TO 125.0 W)
Date Time (UTC) Lat Long Depth Magnitude
2001 APR 5 12:04:34.00 40.3 N 124.5 W 13 km 3.0
40 miles SSW of Eureka, California
EARTHQUAKES IN STATE OF ALASKA
Date Time (UTC) Lat Long Depth Magnitude
2001 APR 4 23:50:50.17 52.4 N 168.5 W 33 km 4.4
40 miles SSE of Nikolski, Alaska
=> Yesterday's USA Severe Weather Reports
Note: All data is considered preliminary
Tornado Reports
No reports received
Hail Reports
Time Size Location County State Lat Lon Comments
1302 100 LURAY CLARK MO 4045 9188 REPORTED BY COOPERATIVE OBSERVER.
(MLI)
1345 88 PLEASANT PLAIN JEFFERSON IA 4115 9188 REPORTED BY LAW
ENFORCEMENT OFFICIAL. (MLI)
1420 75 GLADSTONE HENDERSON IL 4086 9096 REPORTED BY HENDERSON
COUNTY HEALTH DEPARTMENT. (MLI)
1517 100 W BENTLEY HANCOCK IL 4034 9111 REPORTED BY LAW ENFORCEMENT
OFFICIAL. HAIL COVERING THE GROUND IN HALF MILE SWATH. SNOWPLOWS
OUT. (MLI)
1532 150 KIMEO WASHINGTON KS 3959 9700 (TOP)
1540 100 BURLINGTON DES MOINES IA 4081 9108 REPORTED BY STORM SPOTTER.
(MLI)
1540 88 WATERVILLE MARSHALL KS 3969 9674 (TOP)
1544 75 COLMAR MCDONOUGH IL 4034 9090 REPORTED BY ESDA. (MLI)
1600 75 OQUAWKA HENDERSON IL 4093 9094 REPORTED BY STORM SPOTTER.
(MLI)
1603 100 5 S MACOMB MCDONOUGH IL 4038 9066 (MLI)
1608 175 BURLINGTON DES MOINES IA 4081 9108 REPORTED BY STORM SPOTTER.
(MLI)
1610 75 1 NW MARYSVILLE MARSHALL KS 3986 9666 (TOP)
1618 175 5 S MACOMB MCDONOUGH IL 4038 9066 REPORTED BY LAW
ENFORCEMENT OFFICIAL. (MLI)
1640 75 DOUGLAS OTOE NE 4058 9636 REPORTED BY HAM RADIO OPERATOR.
(OMA)
1650 75 PACIFIC JCT MILLS IA 4101 9580 REPORTED BY HAM RADIO OPERATOR.
(OMA)
1720 75 DUNBAR OTOE NE 4066 9603 REPORTED BY HAM RADIO OPERATOR.
(OMA)
1721 75 DOUGLAS OTOE NE 4058 9636 REPORTED BY HAM RADIO OPERATOR.
(OMA)
1730 75 ADAIR MCDONOUGH IL 4041 9050 PEA TO DIME SIZE HAIL COVERING
THE GROUND FROM SOUTH OF MACOMB TO ADAIR. REPORTED BY EMERGENCY
MANAGEMENT. (MLI)
1750 75 PETERSON FILLMORE MN 4379 9183 DIME SIZE HAIL REPORTED BY
PETERSON JUNIOR HIGH SCHOOL (LSE)
1807 75 RED OAK MONTGOMERY IA 4101 9523 REPORTED BY LAW
ENFORCEMENT OFFICIAL. (OMA)
1820 75 ROCKPORT ATCHISON MO 4041 9551 REPORTED BY LAW ENFORCEMENT
OFFICIAL. (MCI)
1826 75 3 E OAKFORD MENARD IL 4009 8990 FROM ESDA. (SPI)
1835 75 CARBON ADAMS IA 4104 9466 REPORTED BY STORM SPOTTER. (DSM)
1845 88 WESTBORO ATCHISON MO 4053 9531 REPORTED BY PUBLIC. (MCI)
2012 175 5 S MT PULASKI LOGAN IL 3993 8928 FROM ESDA. (SPI)
2015 75 SHERIDAN WORTH MO 4051 9461 REPORTED BY PUBLIC. (MCI)
2031 75 REDDING RINGGOLD IA 4059 9438 REPORTED BY STORM SPOTTER. (DSM)
2034 75 GRANT CITY WORTH MO 4048 9441 REPORTED BY PUBLIC. (MCI)
2057 88 DECATUR MACON IL 3984 8894 OCCURRED AT MILLIKIN UNIVERSITY.
FROM NWS OBSERVER. (SPI)
2057 88 LOVINGTON MOULTRIE IL 3971 8863 FROM NWS OBSERVER. (SPI)
2100 75 EAGLEVILLE HARRISON MO 4046 9398 REPORTED BY PUBLIC. (MCI)
2113 175 MACON COUNTY MACON IL 3984 8894 LOCATION IS JUST SW OF
DECATUR. FROM ESDA. (SPI)
2140 75 4 SE MT ZION MACON IL 3971 8882 HALFWAY BETWEEN MT ZION AND
DALTON CITY. FROM ESDA. (SPI)
2144 88 MERCER MERCER MO 4051 9353 REPORTED BY PUBLIC. (MCI)
2222 175 LOVINGTON MOULTRIE IL 3971 8863 FROM NWS COOP OBSERVER. (SPI)
2225 75 1 E NEWTOWN SULLIVAN MO 4038 9331 (MCI)
2225 75 8 E LUCERNE PUTNAM MO 4046 9310 (MCI)
2318 88 KIRKSVILLE ADAIR MO 4019 9258 REPORTED BY MEDIA. (MCI)
2335 75 SUBLETTE ADAIR MO 4029 9256 REPORTED BY STORM SPOTTER. (MCI)
0110 250 EWING LEWIS MO 4000 9171 REPORTED BY SPOTTER. VEHICLES
DAMAGED ALONG HIGHWAY 6 (STL)
0130 75 FOWLER ADAMS IL 4000 9125 REPORTED BY SPOTTER (STL)
0200 75 CLAYTON ADAMS IL 4003 9094 REPORTD BY SPOTTER (STL)
0231 125 MT STERLING BROWN IL 3998 9076 REPORTED BY SPOTTER (STL)
0716 100 WEST PT CUMING NE 4183 9671 REPORTED BY LAW ENFORCEMENT
OFFICIAL. (OMA)
0740 75 OAKLAND BURT NE 4183 9646 REPORTED BY LAW ENFORCEMENT
OFFICIAL. (OMA)
Wind Reports
Time Speed Location County State Lat Lon Comments
1750 UNK PETERSON FILLMORE MN 4379 9183 REPORTED BY GENERAL PUBLIC
PETERSON JUNIOR HIGH SCHOOL REPORTED DIME SIZE HAIL (LSE)
2040 UNK REDDING RINGGOLD IA 4059 9438 LARGE TREES DOWN AND BUILDING
DAMAGE REPORTED BY LAW ENFORCEMENT OFFICIAL. (DSM)
2100 UNK EAGLEVILLE HARRISON MO 4046 9398 TRACTOR TRAILER BLOWN
OVER (MCI)
0925 UNK LA RUE MARION OH 4058 8331 NUMEROUS LIMBS DOWNED BY
THUNDERSTORM WINDS. (CLE)
Fields marked UNK are unknown
All Times UTC
Wind Gusts in MPH
Hail Sizes in 1/100 of an Inch (75 = 0.75")
=> Guest Column -- The System that will replace the SitRep
Yesterday I announced that distribution of the SitRep will be coming to an
end within 30 days. The
SitRep will be replaced by a new system that will be based in part upon the
CERT concept. CERT
stands for Community Emergency Response Team. The system works by assembling
team members
to perform certain functions in an emergency or disaster situation. Each
team will control it's own
mailing list. The members of each list operating under general list use
rules, can control membership,
message distribution means, and develop their own rules (under general
rules) about the uses of
information posted to each list. To begin with there is the operating
mailing list which establishes the
rules under which other lists will operate. After the groups are organized
the members of each list
will nominate members to serve on this rules mailing list, for now,
membership to this is list is open to
everyone. Each list will be organized by it's members regarding subject, or
by operating function.
For example, there may be a disaster communication warnings list, that will
deal with the issue of the
means and methods of the communication of the disaster message, while
another list may deal with
the issue of severe weather warnings. Lists may also be organized around
geographic areas, and by
members of existing organizations like the Red Cross. Individuals with over
lapping interests may
join related groups, for example, earthquake and volcano.
I have done design work related to the systems functions, in the days ahead
I will provide additional
information about this system and how you can participate.
------------------------------------------------------------
SPONSORSHIP NOTICE
THE ROTHSTEIN CATALOG ON DISASTER RECOVERY
The Rothstein Catalog On Disaster Recovery is the largest on line source of
Business Continuity, Disaster Recovery, IT Disaster Recovery, Software,
CD/Diskette Products,
Videos, Management Issues, Exercising Contingency Plans, Telecommunications,
Networks, Call
Centers, Help Desks, Crisis Management, Crisis Communications, Risk
Management, Business
Impact, Disaster Prevention, Avoidance Info, Network Security, Info
Protection, Service Levels,
Service Quality, Natural Hazards -- Earthquakes, Hurricanes.... Business
Records, Libraries,
Media, Banking, Finance, Govt Regs/Guidelines, Emergency Management,
Industrial, Terrorism,
Workplace Violence, Crime, Physical, Financial Security, and other Valuable
Resources, Tools.
http://www.disastercenter.com/Rothstein/.
--------------------------------------------------------------
**** ARTICLES ****
--------------------------------------------------------------
=> Volcano Watch - April 5, 2001 -- Kilauea's all cracked up, and that's
not funny
Late on March 30, a visiting geology student from Oregon fell about
12 m (40 feet) into a crack in the ground between Crater Rim Drive and the
rim of Kilauea's caldera, opposite Kilauea Military Camp. He and a
companion had seen a dark area free of vegetation. Lacking a flashlight,
they couldn't tell what it was. After some discussion, they went for it.
The man fell. The young woman stopped in time, hurried back to the road,
left a slipper to mark the location, and ran screaming to KMC for help.
Paramedics quickly responded and worked with a rescue team from the
national park and Hawai`i County to pull the man to safety. He had ended up
on a narrow ledge, which kept him from falling much farther, and luckily
escaped with minor though numerous contusions.
Encounters with cracks in the summit area of Kilauea are not new. Two
members of Ellis` exploring party fell into cracks on Steaming Flat near
Sulphur Bank on August 1, 1823, though fortunately none was badly injured.
They had more of an excuse than do most later victims, however. Many cracks
were then covered by a thin veneer of volcanic ash erupted in and before
1790. Now more of the cracks are open and obvious, because the veneer has
washed away.
How do the cracks form? Most in the summit area result from the
collapse of the caldera in the late 15th century. They formed when the
caldera dropped down and the walls of the new depression moved slightly
toward the empty space. Similar kinds of cracks develop behind blasted
quarry faces.
Some of the cracks are actually small faults that formed during the
collapse of the caldera. They can be recognized by vertical offset, the
side nearest the caldera being a little lower than the other side.
Other cracks form during landslides or rockfalls into the caldera.
The 1983 Ka`oiki earthquake caused large rock slides that peeled away from
the northeast side of the caldera, damaging Crater Rim Drive beyond repair.
The Earthquake Trail, starting near Volcano House, now takes visitors along
the old pavement to the site of the slides, where hikers can note gaping
cracks cutting the pavement.
All of these cracks are more or less concentric to the caldera. Their
consistent pattern, paralleling the wall of the caldera, helps to recognize
them and to anticipate where one can step safely to avoid them.
Away from the high ground, some cracks on the caldera floor are also
concentric. Most are near Halemaumau and formed during the 1924 collapse of
the crater or during later rock falls. Many of these cracks are very
dangerous and are to be avoided at all cost.
Other cracks on the floor are straight, not curved, and are related
to eruptions. Most of these cracks trend a little north of due east.
Several can be seen northeast of Halemaumau, in the area of eruptions in
1954, 1971, and 1982.
Still other cracks on the caldera floor are related to the collapse
of the caldera itself. Some of these cracks have been reactivated from time
to time. A good example is the crack that crosses the road just beyond the
southeast end of the Halemaumau parking lot. It reopened in 1924, though
its trend shows it to be a caldera fault that formed much earlier.
Cracks are common in the summit area of Kilauea. Many visitors are
surprised by them. The crack hazards are easily avoided. Stay on trails,
don't walk after dark without a flashlight, and don't wander around
outdoors if you're under the influence.
Eruption Update
Eruptive activity of Kilauea Volcano continued unabated at the Pu`u
`O`o vent during the past week and provided visitors with an occasional
glimpse of surface flow activity on Pulama pali and on the coastal flats.
Lava is pooling in the coastal flats and not entering the ocean at this
time. The amoeba-like flow activity in the coastal flats has advance the
sluggish front to within 400 m (1,300 ft) of the sea coast in the old
Kupapa`u area near the eastern boundary of Hawai`i Volcanoes National Park.
Two earthquakes were reported felt by a resident of Aloha Estates
subdivision during the week ending on April 5. Both earthquakes were felt
on Monday, April 2 by the Glenwood resident. The first earthquake at 1:10
a.m. was located 15 km (9.0 mi) southeast of the summit of Kilauea Volcano
at a depth of 1.25 km (0.75 mi). The second earthquake at 8:52 a.m. was
located 6 km (3.6 mi) north of the summit of Kilauea Volcano at a depth of
24 km (14.4 mi). The two felt earthquakes had magnitudes of 3.0 and 3.2,
respectively.
This article was written by scientists at the U.S. Geological Survey's
Hawaiian Volcano Observatory.
=> Classified Ads
Door-to-Door CoPilot Version 2.0 GPS TravRoute
List Price:
$299.99
Our Price:
$250.99
Platform: Windows 95, Windows 98, Windows NT
Media: CD-ROM
Availability: This item usually ships within 2-3 days.
Features:
Enter the street address of your destination, and CoPilot computes the exact
route
CoPilot speaks instructions telling you where to turn--every step of the way
Gives you new directions if you miss a turn, encounter traffic, or choose
another route
Complete nationwide information on one CD that features more than 96 million
addresses
GPS receiver picks up satellite signals and uses them to pinpoint your
location on earth
Shipping: Currently, item can be shipped only within the U.S.
http://www.amazon.com/exec/obidos/ASIN/B00000J495/thedisastercenteA/
FREE 30 days of StormWarn by Email, Pager, PCS/GSM Phone, Business Fax at no
cost*
Sign up today and you'll receive no obligation, no commitment StormWarn . If
you find it helpful, you can then decide to continue service at very low
rates. Your account is held in strictest confidence and you won't keep
hearing from us if you decide not to keep the service. We believe in the
value of StormWarn, and we think you will too.
*Direct pages and faxes are limited to 50 bulletins during the trial period.
http://www.stormwarn.com/index.asp?a=10296
=> Links Area
=> How to Be Featured as our Guest Columnist
If you have report or notice that you think would be of interest to the
readers of the SitRep please send an email to: host{at}disastercenter.com
=> Subscribe/Unsubscribe information
The information presented here is not authoritative.
It contains preliminary and partial information reports. It is intended to serve as a general daily digest of disaster related reports. Any other use is not intended or authorized.
The Disaster Center is a partner with CASI - Central Atlantic Storm Investigators. CASI is a group of over a thousand amateur and professional meteorologists, storm spotters, and weather observers from around the world dedicated to the observation and documentation of weather events
http://www.weatherwatchers.org
The Current Report can be accessed at:
http://www.disastercenter.com/current.htm
If you wish to send a report please use our Disaster Center Situation Report Form form located at:
http://www.disastercenter.com/email/formSR.htm
To subcribe or unsubscribe to this list send an e-mail to:
sitrep-request{at}disastercenter.com
with the word
subscribe
or the word
unsubscribe
only, in the body of the message.
If you wish to contact the list owner send an e-mail to: host{at}disastercenter.com
Copyright The Disaster Center
Please feel free to to pass this e-zine along to your friends.
However we ask that keep it intact and forward it along in its entirety.
===================================================
STORMREPORTS Email List - For CASI Members Only
Set Yourself to "DIGEST" For ONE EMAIL PER DAY!
TO UNSUBSCRIBE: stormreports-unsubscribe{at}casi-internal
TO UNSUBSCRIBE, SUSPEND, CHANGE EMAIL, OR DIGEST:
http://www.casi-internal/subscribe/stormreports
RULES:
http://www.weatherwatchers.org/members/casisr.html
===================================================
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
This archive was generated by hypermail 2b29 : Tue May 01 2001 - 19:48:57 EDT
